After about 10 days, Wang Zheng was discharged. Generally, those who had sustained grievous injuries like him would have their vital energy compromised. Physical recovery was not complete recovery. This means that the body was still "frail". But to Ability X users, their bodies were much stronger than average people's. Although, more time for recovery was always a good thing.
Wang Zheng felt a lot better than the doctors' diagnosis. The Primordial Regression Technique's cultivation had made his body very resilient and his recovery astounding. The Primordial Regression Technique was meant to cultivate vital energy, and that was something that non-martial arts practitioners could not compare with.